:root {
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --danger: #ef4444;
    --radius: 8px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1100px;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

h1 {
    font-size: 1.5rem;
    color: var(--text-main);
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

/* --- Topbar Flottante Utilisateur / Déconnexion --- */
.app-topbar {
    position: fixed;
    top: 1rem;
    right: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 900;
    border: 1px solid var(--border-color);
}

.user-badge {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-badge span {
    color: var(--text-muted);
    font-weight: normal;
    font-size: 0.75rem;
}

.btn-logout {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-logout:hover {
    background: var(--danger);
    color: #fff;
}

/* Formulaires & Inputs */
.form-group {
    margin-bottom: 0.75rem;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: var(--text-main);
}

input[type="text"],
input[type="number"],
input[type="datetime-local"],
input[type="password"],
select,
textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: #fff;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
}

.readonly-field {
    background-color: #f1f5f9 !important;
    cursor: not-allowed;
    color: var(--text-muted);
}

/* Layouts Grilles & Flex */
.form-row {
    display: grid;
    gap: 0.75rem;
}

.grid-2 {
    grid-template-columns: 1fr 1fr;
}

.grid-4 {
    grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
}

.flex-gap {
    display: flex;
    gap: 0.5rem;
}

/* Bloc Matériel Fixe */
.equipment-header-block {
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

/* Boutons principaux */
button,
.btn-primary {
    background-color: var(--primary);
    color: #fff;
    border: none;
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover,
.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    cursor: pointer;
}

.btn-secondary:hover {
    background: #f8fafc;
    color: var(--text-main);
}

/* Tableau */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th,
td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: #f8fafc;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

tr:hover {
    background-color: #f8fafc;
}

/* Onglets Filtrage Liste */
.tabs-header {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-bottom: 3px solid transparent;
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    cursor: pointer;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Onglets Formulaire Modale */
.nav-tabs {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
    border-bottom: 2px solid var(--border-color);
}

.tab-link {
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.tab-link:hover {
    color: var(--text-main);
}

.tab-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    min-height: 200px;
}

.tab-content.active {
    display: block;
}

/* Modale */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    width: 85vw;
    max-width: 1100px;
    max-height: 90vh;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-close {
    background: transparent;
    color: var(--text-muted);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-body {
    padding: 1.5rem;
    flex: 1;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}